Controlled flow baffles for a treatment tank

A treatment system for water or wastewater treatment, the treatment system comprising:

• a treatment tank, comprising:
• an inlet able to receive water or wastewater in need of treatment;
• an outlet able to provide treated water or wastewater;
• and
• a controlled flow baffle between the inlet and the outlet, the controlled flow baffle comprising:
• an opening defined within a surface of the controlled flow baffle, the opening operable to allow received water or wastewater to flow between adjacent zones defined by the controlled flow baffle in the treatment tank;
• and
• an actuation element able to adjust a size of the opening,
• wherein increasing the size of the opening by actuating the actuation element increases a flow of the received water or wastewater through the opening and decreases an elevation of a weir crest of the water or wastewater flowing over the controlled flow baffle, and
• wherein decreasing the size of the opening by actuating the actuation element decreases the flow of the received water or wastewater through the opening and increases the elevation of the weir crest of the water or wastewater flowing over the controlled flow baffle.

A controlled flow baffle in a treatment tank for water or wastewater treatment, the controlled flow baffle comprising:

• an opening defined within a surface of the controlled flow baffle, the opening operable to allow water or wastewater to flow between adjacent zones of the treatment tank defined by the controlled flow baffle;
• an actuation element able to adjust a size of the opening, wherein the actuation element is passively controlled by forces associated with flow-induced head loss, buoyancy forces, or other non-actively controlled means;
• and
• a flow element positioned proximate to a top edge or surface of the controlled flow baffle for increasing or reducing a height of a weir crest for the controlled flow baffle.